/* Video Agent demo — Derek family look */
:root {
  --bg: #FFFFFF;
  --panel: #F4F8F6;
  --panel-2: #EEF4F1;
  --line: #E3EAE6;
  --ink: #111827;
  --ink-2: #374151;
  --muted: #6B7280;
  --green: #1D5C45;
  --green-ink: #1D5C45;
  --green-soft: #E3F0EA;
  --on-green: #FFFFFF;
  --amber: #B45309;
  --amber-bg: #FEF3C7;
  --red: #B42318;
  --red-bg: #FEE4E2;
  --blue: #1E40AF;
  --blue-bg: #E0E7FF;
  --shadow: 0 1px 2px rgba(17, 24, 39, .04), 0 6px 20px rgba(17, 24, 39, .05);
  --radius: 14px;
  --video-bg: #0B0F0D;
  --font: "Inter", "PingFang SC", "Noto Sans SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, "PingFang SC", "Noto Sans SC", monospace;
  --serif: "Playfair Display", "Didot", "Bodoni 72", Georgia, "Times New Roman", serif;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0D1210;
    --panel: #141C19;
    --panel-2: #18221E;
    --line: #26332E;
    --ink: #E7EEEA;
    --ink-2: #C9D3CE;
    --muted: #97A39D;
    --green: #2E7D5E;
    --green-ink: #7CCFA8;
    --green-soft: #18342A;
    --on-green: #FFFFFF;
    --amber: #F2B35B;
    --amber-bg: #3A2A12;
    --red: #F4978E;
    --red-bg: #3D1A17;
    --blue: #A5B4FC;
    --blue-bg: #1E2547;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px rgba(0, 0, 0, .25);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0D1210;
  --panel: #141C19;
  --panel-2: #18221E;
  --line: #26332E;
  --ink: #E7EEEA;
  --ink-2: #C9D3CE;
  --muted: #97A39D;
  --green: #2E7D5E;
  --green-ink: #7CCFA8;
  --green-soft: #18342A;
  --on-green: #FFFFFF;
  --amber: #F2B35B;
  --amber-bg: #3A2A12;
  --red: #F4978E;
  --red-bg: #3D1A17;
  --blue: #A5B4FC;
  --blue-bg: #1E2547;
  --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px rgba(0, 0, 0, .25);
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, video { display: block; max-width: 100%; }
a { color: var(--green-ink); text-underline-offset: 2px; }
button { font: inherit; color: inherit; }
h1, h2, h3, h4 { line-height: 1.2; margin: 0; letter-spacing: -0.01em; }
p { margin: 0; }
:focus-visible { outline: 2px solid var(--green-ink); outline-offset: 2px; border-radius: 6px; }
[hidden] { display: none !important; }

.wrap { width: 100%; max-width: 1280px; margin: 0 auto; padding: 0 16px; }
@media (min-width: 720px) { .wrap { padding: 0 32px; } }

.skip { position: absolute; left: -9999px; top: 8px; background: var(--green); color: var(--on-green); padding: 8px 12px; border-radius: 8px; z-index: 50; }
.skip:focus { left: 8px; }

.eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 10px;
}

/* ---------- header ---------- */
.top { border-bottom: 1px solid var(--line); background: var(--bg); }
.top-row { display: flex; align-items: center; gap: 12px; min-height: 64px; flex-wrap: wrap; padding-top: 10px; padding-bottom: 10px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; }
.brand-d { font-family: var(--serif); font-weight: 600; font-size: 40px; line-height: 1; letter-spacing: -0.02em; }
.brand-text { display: flex; flex-direction: column; gap: 3px; }
.brand-name { font-size: 15px; font-weight: 600; letter-spacing: .32em; line-height: 1; }
.brand-tag { font-size: 8.5px; letter-spacing: .16em; color: var(--muted); line-height: 1; white-space: nowrap; }
.brand-sep { width: 1px; height: 28px; background: var(--line); }
.project-name { font-weight: 600; font-size: 16px; }
.pill {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 12px; font-weight: 500; line-height: 1;
  padding: 6px 10px; border-radius: 999px;
  background: var(--green-soft); color: var(--green-ink);
  white-space: nowrap;
}
.pill-amber { background: var(--amber-bg); color: var(--amber); }
.controls { margin-left: auto; display: flex; align-items: center; gap: 8px; }
.seg { display: inline-flex; border: 1px solid var(--line); border-radius: 999px; padding: 2px; background: var(--panel); }
.seg-btn { border: 0; background: transparent; padding: 5px 11px; border-radius: 999px; font-size: 13px; font-weight: 500; color: var(--muted); cursor: pointer; min-height: 32px; }
.seg-btn[aria-pressed="true"] { background: var(--bg); color: var(--ink); box-shadow: 0 1px 2px rgba(0,0,0,.08); }
.icon-btn { width: 38px; height: 38px; border-radius: 999px; border: 1px solid var(--line); background: var(--panel); display: inline-grid; place-items: center; cursor: pointer; color: var(--ink); }
.icon-btn .i-sun { display: none; }
:root[data-theme="dark"] .icon-btn .i-sun { display: block; }
:root[data-theme="dark"] .icon-btn .i-moon { display: none; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .icon-btn .i-sun { display: block; }
  :root:not([data-theme="light"]) .icon-btn .i-moon { display: none; }
}
@media (max-width: 560px) {
  .brand-d { font-size: 34px; }
  .brand-tag { display: none; }
  .brand-sep { display: none; }
  .top-row { gap: 8px 10px; }
  .demo-pill { order: 3; }
  .controls { order: 4; }
}

/* ---------- hero ---------- */
.hero { padding-top: 48px; padding-bottom: 40px; }
.hero h1 { font-size: clamp(32px, 5.2vw, 56px); font-weight: 700; letter-spacing: -0.025em; max-width: 24ch; }
:root[lang^="zh"] .hero h1 { letter-spacing: 0; max-width: 20ch; }
.lede { margin-top: 14px; font-size: clamp(17px, 1.6vw, 20px); color: var(--ink-2); max-width: 62ch; }
.io { margin: 28px 0 26px; display: grid; gap: 12px; grid-template-columns: 1fr; }
@media (min-width: 880px) { .io { grid-template-columns: 1fr auto 1fr 1fr; align-items: stretch; } }
.io-card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 18px; }
.io-you { background: var(--amber-bg); border-color: transparent; }
.io-you .io-label { color: var(--amber); }
.io-label { font-family: var(--mono); font-size: 11px; letter-spacing: .14em; text-transform: uppercase; color: var(--green-ink); margin-bottom: 6px; }
.io-main { font-weight: 600; font-size: 16px; }
.io-eg { color: var(--muted); font-size: 14px; margin-top: 4px; }
.io-you .io-eg { color: var(--ink-2); }
.io-arrow { display: none; align-self: center; color: var(--muted); font-size: 22px; }
@media (min-width: 880px) { .io-arrow { display: block; } }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 44px; padding: 10px 18px; border-radius: 999px;
  font-weight: 600; font-size: 15px; text-decoration: none; cursor: pointer;
  border: 1px solid transparent; transition: background .15s, border-color .15s;
}
.btn-primary { background: var(--green); color: var(--on-green); }
.btn-primary:hover { background: #174A38; }
:root[data-theme="dark"] .btn-primary:hover { background: #359069; }
.btn-ghost { background: transparent; border-color: var(--line); color: var(--ink); }
.btn-ghost:hover { background: var(--panel); }
.btn[disabled] { opacity: .45; cursor: default; }

/* ---------- pipeline ---------- */
.pipeline { padding-top: 40px; padding-bottom: 24px; border-top: 1px solid var(--line); }
.pipeline h2, .run h2 { font-size: clamp(24px, 3vw, 32px); font-weight: 700; }
.stages { list-style: none; padding: 0; margin: 22px 0 0; display: grid; gap: 10px; grid-template-columns: 1fr; counter-reset: st; }
@media (min-width: 640px) { .stages { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1040px) { .stages { grid-template-columns: repeat(7, 1fr); } }
.stage-card { height: 100%; }
.stage-card button {
  width: 100%; height: 100%; text-align: left; cursor: pointer;
  background: var(--bg); border: 1px solid var(--line); border-radius: 12px;
  padding: 14px 14px 12px; display: flex; flex-direction: column; gap: 6px;
  transition: border-color .15s, background .15s;
}
.stage-card button:hover { border-color: var(--green); background: var(--panel); }
.stage-num { font-family: var(--mono); font-size: 12px; color: var(--muted); display: flex; align-items: center; justify-content: space-between; gap: 6px; }
.stage-name { font-weight: 700; font-size: 16px; }
.stage-line { font-size: 13.5px; color: var(--ink-2); line-height: 1.45; }
.stage-role { font-size: 12px; color: var(--muted); margin-top: auto; padding-top: 4px; }
.you-badge { display: inline-flex; align-items: center; gap: 4px; font-family: var(--font); font-size: 11px; font-weight: 600; color: var(--amber); background: var(--amber-bg); padding: 2px 7px; border-radius: 999px; white-space: nowrap; }

/* ---------- run ---------- */
.run { padding-top: 40px; padding-bottom: 56px; border-top: 1px solid var(--line); margin-top: 24px; scroll-margin-top: 8px; }
.run-note { color: var(--muted); margin-top: 8px; font-size: 15px; max-width: 70ch; }
.topics { display: grid; gap: 12px; margin: 22px 0 22px; grid-template-columns: 1fr; }
@media (min-width: 760px) { .topics { grid-template-columns: repeat(3, 1fr); } }
.topic {
  display: grid; grid-template-columns: 112px 1fr; gap: 12px; align-items: center;
  text-align: left; cursor: pointer; padding: 10px; border-radius: var(--radius);
  background: var(--bg); border: 1.5px solid var(--line); transition: border-color .15s, background .15s;
}
@media (min-width: 760px) { .topic { grid-template-columns: 1fr; padding: 10px 10px 14px; align-items: start; } }
@media (min-width: 1180px) { .topic { grid-template-columns: 150px 1fr; align-items: center; padding: 10px; } }
.topic:hover { border-color: var(--green); }
.topic[aria-checked="true"] { border-color: var(--green); background: var(--green-soft); }
.topic-img { aspect-ratio: 16 / 9; border-radius: 9px; overflow: hidden; background: var(--video-bg); }
.topic-img img { width: 100%; height: 100%; object-fit: cover; }
.topic-tag { font-family: var(--mono); font-size: 11px; letter-spacing: .1em; text-transform: uppercase; color: var(--green-ink); }
.topic-title { font-weight: 700; font-size: 16px; margin-top: 2px; line-height: 1.3; }
.topic-meta { font-size: 13px; color: var(--muted); margin-top: 2px; }
.topic-film { font-size: 13px; color: var(--ink-2); margin-top: 2px; }
.topic-check { display: none; }

.runner { background: var(--panel); border: 1px solid var(--line); border-radius: 18px; padding: 14px; }
@media (min-width: 720px) { .runner { padding: 20px; } }

/* stepper */
.stepper { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 16px; }
.step {
  flex: 1 1 0; min-width: 0; display: flex; align-items: center; gap: 8px;
  background: var(--bg); border: 1px solid var(--line); border-radius: 10px;
  padding: 8px 10px; cursor: pointer; text-align: left; min-height: 44px;
}
.step-n { flex: none; width: 24px; height: 24px; border-radius: 999px; display: grid; place-items: center; font-family: var(--mono); font-size: 12px; background: var(--panel-2); color: var(--muted); }
.step-name { font-size: 13.5px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.step-you { flex: none; width: 7px; height: 7px; border-radius: 999px; background: var(--amber); margin-left: auto; }
.step.done .step-n { background: var(--green-soft); color: var(--green-ink); }
.step.active { border-color: var(--green); background: var(--green); color: var(--on-green); }
.step.active .step-n { background: rgba(255,255,255,.2); color: var(--on-green); }
.step.active .step-you { background: #FCD34D; }
@media (max-width: 900px) {
  .stepper { flex-wrap: nowrap; gap: 5px; }
  .step { flex: 1 1 0; padding: 6px 0; justify-content: center; position: relative; }
  .step .step-name { display: none; }
  .step .step-you { position: absolute; top: 5px; right: 5px; margin: 0; width: 6px; height: 6px; }
}

.run-grid { display: grid; gap: 16px; grid-template-columns: minmax(0, 1fr); }
@media (min-width: 1080px) {
  .run-grid { grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: 20px; align-items: start; }
}
.stage-panel { background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; min-width: 0; }
@media (min-width: 720px) { .stage-panel { padding: 22px 24px; } }

/* monitor */
.monitor { background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius); padding: 12px; min-width: 0; }
@media (min-width: 1080px) { .monitor { position: sticky; top: 12px; order: 2; } }
@media (max-width: 1079px) {
  .monitor { order: -1; }
  .runner.sticky-mon .monitor { position: sticky; top: 0; z-index: 5; box-shadow: var(--shadow); border-radius: 0 0 var(--radius) var(--radius); }
  .runner.sticky-mon .readout, .runner.sticky-mon .mon-head { display: none; }
}
.mon-head { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-bottom: 8px; }
.mon-label { font-family: var(--mono); font-size: 11px; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }
.mon-film { font-weight: 600; font-size: 14px; }
.mon-head .pill { margin-left: auto; }
.video-box { background: var(--video-bg); border-radius: 10px; overflow: hidden; aspect-ratio: 16 / 9; }
.video-box video { width: 100%; height: 100%; object-fit: contain; background: var(--video-bg); }

/* timeline */
.tl { position: relative; margin-top: 10px; user-select: none; -webkit-user-select: none; }
.tl-ch { position: relative; height: 18px; }
.tl-ch span { position: absolute; top: 0; height: 18px; font-family: var(--mono); font-size: 10.5px; color: var(--muted); border-left: 1px solid var(--line); padding-left: 4px; white-space: nowrap; overflow: hidden; text-overflow: clip; line-height: 18px; }
.tl-beats { position: relative; height: 26px; display: flex; border-radius: 6px; overflow: hidden; background: var(--panel-2); }
.tl-seg { position: relative; height: 100%; border: 0; padding: 0; margin: 0; cursor: pointer; background: var(--line); border-right: 1px solid var(--bg); min-width: 2px; }
.tl-seg:nth-child(even) { background: color-mix(in srgb, var(--line) 60%, var(--panel-2)); }
.tl-seg:hover { background: color-mix(in srgb, var(--green) 35%, var(--line)); }
.tl-seg.active { background: var(--green); }
.tl-seg:focus-visible { outline-offset: -2px; }
.tl-cues { position: relative; height: 8px; margin-top: 3px; }
.tl-cues i { position: absolute; top: 0; width: 1px; height: 6px; background: var(--muted); opacity: .5; }
.tl-cues i.on { background: var(--amber); opacity: 1; height: 8px; width: 2px; }
.tl-head { position: absolute; top: 14px; bottom: 6px; width: 2px; margin-left: -1px; background: var(--ink); left: 0; pointer-events: none; border-radius: 2px; }
.tl-head::before { content: ""; position: absolute; top: -4px; left: -3px; width: 8px; height: 8px; border-radius: 999px; background: var(--ink); }
.mon-now { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; margin-top: 8px; font-size: 13.5px; }
.now-beat { font-weight: 600; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.now-beat .muted { color: var(--muted); font-weight: 500; font-family: var(--mono); font-size: 12px; margin-right: 6px; }
.now-time { font-family: var(--mono); font-size: 12px; color: var(--muted); white-space: nowrap; }
.readout { margin-top: 10px; background: var(--panel); border-radius: 10px; padding: 10px 12px; min-height: 72px; }
.ro-label { font-family: var(--mono); font-size: 10.5px; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); margin-bottom: 4px; }
.ro-orig { font-size: 16px; font-weight: 500; line-height: 1.5; }
.ro-orig .blk { color: var(--muted); }
.ro-orig .blk.on { color: var(--ink); background: var(--green-soft); border-radius: 4px; }
.ro-en { font-size: 14px; color: var(--ink-2); margin-top: 4px; }
.ro-empty { color: var(--muted); font-size: 14px; }

/* step nav */
.step-nav { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-top: 16px; }
.step-count { font-family: var(--mono); font-size: 12px; color: var(--muted); text-align: center; }
@media (max-width: 520px) { .step-count { display: none; } .step-nav .btn { flex: 1 1 0; padding: 10px 12px; } }

/* ---------- stage content ---------- */
.sp-eyebrow { font-family: var(--mono); font-size: 11.5px; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }
.sp-title { font-size: 22px; font-weight: 700; margin-top: 6px; }
.sp-intro { color: var(--ink-2); margin-top: 6px; font-size: 15px; }
.sp-section { margin-top: 20px; }
.sp-h { font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); margin-bottom: 8px; }
:root[lang^="zh"] .sp-h { letter-spacing: .02em; }

.steps { list-style: none; padding: 0; margin: 14px 0 0; display: grid; gap: 6px; }
.steps li { display: grid; grid-template-columns: 20px auto 1fr; gap: 8px; align-items: start; font-size: 14px; }
.steps .tick { width: 18px; height: 18px; margin-top: 2px; border-radius: 999px; background: var(--green-soft); color: var(--green-ink); display: grid; place-items: center; font-size: 11px; font-weight: 700; }
.steps .role { font-family: var(--mono); font-size: 11px; color: var(--green-ink); background: var(--green-soft); padding: 2px 6px; border-radius: 6px; white-space: nowrap; margin-top: 1px; }
.steps li.you .tick { background: var(--amber-bg); color: var(--amber); }
.steps li.you .role { background: var(--amber-bg); color: var(--amber); }
.steps.animate li { animation: stepIn .38s both; animation-delay: calc(var(--i) * 140ms); }
@keyframes stepIn { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) { .steps.animate li { animation: none; } }

.chat { display: grid; gap: 10px; margin-top: 16px; }
.bubble { border-radius: 14px; padding: 12px 14px; max-width: 92%; font-size: 15px; }
.bubble .who { display: block; font-family: var(--mono); font-size: 10.5px; letter-spacing: .12em; text-transform: uppercase; margin-bottom: 4px; color: var(--muted); }
.bubble.human { background: var(--panel); justify-self: end; border-bottom-right-radius: 4px; }
.bubble.agent { background: var(--green-soft); border-bottom-left-radius: 4px; }
.bubble.agent .who { color: var(--green-ink); }

.decide { margin-top: 16px; border: 1px solid color-mix(in srgb, var(--amber) 35%, transparent); background: var(--amber-bg); border-radius: 12px; padding: 12px 14px; }
.decide + .decide { margin-top: 10px; }
.decide-label { display: inline-flex; align-items: center; gap: 6px; font-family: var(--mono); font-size: 11px; letter-spacing: .12em; text-transform: uppercase; color: var(--amber); font-weight: 500; }
.decide-q { font-weight: 600; margin-top: 4px; font-size: 15px; }
.decide-a { margin-top: 6px; font-size: 14.5px; color: var(--ink-2); display: flex; gap: 8px; }
.decide-a::before { content: "↳"; color: var(--amber); }

.kv { display: grid; grid-template-columns: minmax(96px, auto) 1fr; gap: 0; border: 1px solid var(--line); border-radius: 10px; overflow: hidden; font-size: 14px; }
.kv dt, .kv dd { margin: 0; padding: 8px 12px; border-top: 1px solid var(--line); }
.kv dt { color: var(--muted); background: var(--panel); }
.kv dt:first-of-type, .kv dt:first-of-type + dd { border-top: 0; }
.note { margin-top: 10px; font-size: 14px; color: var(--ink-2); background: var(--panel); border-radius: 10px; padding: 10px 12px; }
.note.warn { background: var(--amber-bg); color: var(--ink); }
.note.warn strong { color: var(--amber); }

.logline { font-size: 17px; font-weight: 500; line-height: 1.5; border-left: 3px solid var(--green); padding-left: 12px; margin-top: 14px; }
.cards3 { display: grid; gap: 10px; grid-template-columns: 1fr; }
@media (min-width: 640px) { .cards3 { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 1080px) { .cards3 { grid-template-columns: 1fr; } }
.card { background: var(--panel); border-radius: 10px; padding: 12px; font-size: 14px; }
.card h4 { font-size: 14px; margin-bottom: 4px; }
.struct { list-style: none; padding: 0; margin: 0; display: grid; gap: 6px; }
.struct li { display: grid; grid-template-columns: minmax(110px, 34%) 1fr; gap: 10px; font-size: 14px; padding: 8px 10px; border-radius: 8px; background: var(--panel); }
.struct b { font-weight: 600; }
.rules { margin: 0; padding-left: 18px; font-size: 14px; display: grid; gap: 4px; }

.facts { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.facts th, .facts td { text-align: left; padding: 8px 8px; border-top: 1px solid var(--line); vertical-align: top; }
.facts th { font-size: 11.5px; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: .05em; border-top: 0; }
.facts td.src { color: var(--muted); }
.tag { display: inline-flex; align-items: center; gap: 4px; font-size: 11.5px; font-weight: 600; padding: 2px 8px; border-radius: 999px; white-space: nowrap; }
.tag.ok, .tag.pass { background: var(--green-soft); color: var(--green-ink); }
.tag.demo, .tag.info { background: var(--blue-bg); color: var(--blue); }
.tag.warn { background: var(--amber-bg); color: var(--amber); }
.tag.fail { background: var(--red-bg); color: var(--red); }
.tag.fixed { background: var(--red-bg); color: var(--red); text-decoration: line-through; text-decoration-thickness: 1px; }
.tag.fixed + .tag { margin-left: 4px; }
@media (max-width: 560px) {
  .facts thead { display: none; }
  .facts tr { display: grid; grid-template-columns: 1fr auto; gap: 2px 8px; padding: 8px 0; border-top: 1px solid var(--line); }
  .facts td { border: 0; padding: 0; }
  .facts td.claim { grid-column: 1; }
  .facts td.st { grid-column: 2; grid-row: 1; }
  .facts td.src { grid-column: 1 / -1; }
}

/* beat + cue lists */
.tip { font-size: 13.5px; color: var(--muted); margin-top: 6px; }
.list-scroll { margin-top: 12px; }
@media (min-width: 1080px) { .list-scroll { max-height: 600px; overflow-y: auto; padding-right: 4px; overscroll-behavior: contain; } }
.ch-head { font-family: var(--mono); font-size: 11px; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); padding: 12px 2px 6px; }
.ch-head:first-child { padding-top: 0; }
.beat {
  width: 100%; display: grid; grid-template-columns: 96px 1fr; gap: 12px; align-items: start;
  text-align: left; background: transparent; border: 1px solid transparent; border-radius: 10px;
  padding: 8px; cursor: pointer; transition: background .15s, border-color .15s;
}
.beat + .beat { margin-top: 2px; }
.beat:hover { background: var(--panel); }
.beat.active { background: var(--green-soft); border-color: color-mix(in srgb, var(--green) 40%, transparent); }
.thumb { width: 96px; aspect-ratio: 16 / 9; border-radius: 6px; background-color: var(--video-bg); background-repeat: no-repeat; }
.beat-top { display: flex; align-items: baseline; gap: 8px; flex-wrap: wrap; }
.beat-time { font-family: var(--mono); font-size: 11.5px; color: var(--muted); }
.beat-id { font-family: var(--mono); font-size: 11px; color: var(--muted); }
.beat-g { font-family: var(--mono); font-size: 10.5px; color: var(--green-ink); background: var(--green-soft); padding: 1px 5px; border-radius: 4px; }
.beat.active .beat-g { background: var(--bg); }
.beat-title { font-weight: 600; font-size: 15px; margin-top: 1px; }
.beat-desc { font-size: 13.5px; color: var(--ink-2); margin-top: 2px; }
@media (max-width: 420px) { .beat { grid-template-columns: 76px 1fr; gap: 10px; } .thumb { width: 76px; } }

.cue {
  width: 100%; display: grid; grid-template-columns: 52px 1fr; gap: 10px; text-align: left;
  background: transparent; border: 1px solid transparent; border-radius: 8px; padding: 7px 8px; cursor: pointer;
}
.cue:hover { background: var(--panel); }
.cue.active { background: var(--green-soft); border-color: color-mix(in srgb, var(--green) 40%, transparent); }
.cue.para-end { margin-bottom: 8px; }
.cue-time { font-family: var(--mono); font-size: 11.5px; color: var(--muted); padding-top: 3px; }
.cue-orig { font-size: 15px; line-height: 1.5; }
.cue-orig .bar { color: var(--muted); padding: 0 2px; }
.cue-en { font-size: 13.5px; color: var(--ink-2); margin-top: 2px; }
.cue-name { font-family: var(--mono); font-size: 12px; color: var(--green-ink); }

/* render */
.groups { display: grid; gap: 8px; grid-template-columns: repeat(2, minmax(0, 1fr)); }
@media (min-width: 560px) { .groups { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.grp { background: var(--panel); border-radius: 10px; padding: 10px; font-size: 13px; position: relative; overflow: hidden; }
.grp b { font-family: var(--mono); font-size: 14px; }
.grp .grp-sub { color: var(--muted); }
.grp .bar { height: 4px; border-radius: 4px; background: var(--line); margin-top: 8px; overflow: hidden; }
.grp .bar i { display: block; height: 100%; width: 100%; background: var(--green); transform-origin: left; }
.steps.animate ~ .groups .bar i, .animate-bars .bar i { animation: barFill 1.1s ease-out both; animation-delay: calc(var(--i) * 160ms + 200ms); }
@keyframes barFill { from { transform: scaleX(0); } to { transform: scaleX(1); } }
@media (prefers-reduced-motion: reduce) { .animate-bars .bar i { animation: none; } }
.log { margin: 0; background: #0E1512; color: #CFE3D9; border-radius: 10px; padding: 12px 14px; font-family: var(--mono); font-size: 12.5px; line-height: 1.65; overflow-x: auto; white-space: pre; }
.log .ok { color: #7CCFA8; }
.log .arrow { color: #F2C27B; }

/* qc */
.qc-sum { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; }
.qc-sum .tag { font-size: 13px; padding: 4px 10px; }
.qc { width: 100%; border-collapse: collapse; font-size: 13.5px; margin-top: 12px; }
.qc th, .qc td { text-align: left; padding: 9px 8px; border-top: 1px solid var(--line); vertical-align: top; }
.qc th { font-size: 11.5px; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: .05em; border-top: 0; }
.qc td.meas { font-family: var(--mono); font-size: 12.5px; }
.qc td.tgt { color: var(--muted); font-size: 12.5px; }
.qc tr.r-fail td { background: color-mix(in srgb, var(--red-bg) 55%, transparent); }
.qc tr.r-warn td { background: color-mix(in srgb, var(--amber-bg) 55%, transparent); }
.qc tr.r-fixed td { color: var(--muted); }
@media (max-width: 640px) {
  .qc thead { display: none; }
  .qc tr { display: grid; grid-template-columns: 1fr auto; gap: 2px 8px; padding: 9px 6px; border-top: 1px solid var(--line); }
  .qc td { border: 0; padding: 0; background: transparent !important; }
  .qc tr.r-fail { background: color-mix(in srgb, var(--red-bg) 55%, transparent); }
  .qc tr.r-warn { background: color-mix(in srgb, var(--amber-bg) 55%, transparent); }
  .qc td.chk { grid-column: 1; font-weight: 600; }
  .qc td.res { grid-column: 2; grid-row: 1; }
  .qc td.tgt::before { content: attr(data-l) " "; }
  .qc td.meas::before { content: attr(data-l) " "; font-family: var(--font); color: var(--muted); }
  .qc td.tgt, .qc td.meas { grid-column: 1 / -1; }
}
.foot-note { font-size: 12.5px; color: var(--muted); margin-top: 10px; }

/* critique */
.scores { display: grid; gap: 8px; }
.score { display: grid; grid-template-columns: minmax(120px, 42%) 1fr 34px; gap: 10px; align-items: center; font-size: 14px; }
.score-bar { height: 8px; border-radius: 8px; background: var(--panel-2); overflow: hidden; }
.score-bar i { display: block; height: 100%; background: var(--green); border-radius: 8px; }
.score-val { font-family: var(--mono); font-size: 13px; text-align: right; }
.olist { margin: 0; padding-left: 20px; display: grid; gap: 6px; font-size: 14.5px; }

/* ---------- footer ---------- */
.foot { border-top: 1px solid var(--line); background: var(--panel); padding: 32px 0 40px; margin-top: 8px; }
.foot-grid { display: grid; gap: 24px; grid-template-columns: 1fr; }
@media (min-width: 860px) { .foot-grid { grid-template-columns: 1.2fr 1fr 1.4fr; } }
.foot-title { font-weight: 700; font-size: 15px; margin-bottom: 8px; }
.foot-line { font-size: 14px; color: var(--ink-2); margin-top: 6px; }
.foot-small { font-size: 13px; color: var(--muted); }
.foot-links { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 6px 14px; font-size: 14px; }